{"product_id":"wilkins-zw4000g-u-2-12-pressure-reducing-standpipe-valve-fire-hose","title":"Wilkins ZW4000G-U | 2-1\/2\" Pressure Reducing Standpipe Valve, Fire Hose","description":"\u003cp\u003e\u003cstrong\u003eNOTICE:\u003c\/strong\u003e\u003cem\u003e Product images may vary from the actual item due to differences in size or configuration options.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe Wilkins ZW4000G-U is a UL Listed pressure reducing standpipe valve designed for CLASS I and CLASS III fire hose systems, regulating pressure under both flow and no-flow conditions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eKey Specifications:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 2 1\/2 Inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Inlet Pressure:\u003c\/strong\u003e 200 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Capacity:\u003c\/strong\u003e Up to 500 GPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNotable Certifications:\u003c\/strong\u003e UL Listed, C-UL Listed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e Grooved inlet, male hose outlet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eOther Related Variants:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZW4000G-P:\u003c\/strong\u003e 360 psi maximum inlet pressure version\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZW4000G-Q:\u003c\/strong\u003e 310 psi maximum inlet pressure version\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZW4000G-R:\u003c\/strong\u003e 290 psi maximum inlet pressure version\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZW4000G-S:\u003c\/strong\u003e 250 psi maximum inlet pressure version\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZW4000G-T:\u003c\/strong\u003e 225 psi maximum inlet pressure version\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eMaterials:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCast bronze body (ASTM B 584)\u003c\/li\u003e\n\u003cli\u003eBuna Nitrile elastomers (FDA approved)\u003c\/li\u003e\n\u003cli\u003eEPDM elastomers (FDA approved)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTypical Installation:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"background: #f8f9fb; padding: 12px 14px; margin: 0; line-height: 1.7; color: #333;\"\u003eThe Zurn ZW4000G-U is designed for individual hose stations in CLASS I and CLASS III standpipe systems, providing reliable pressure regulation for fire protection applications in commercial and residential buildings.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"background: #f8f9fb; border-left: 4px solid #1d85af; padding: 12px 14px; margin: 0; line-height: 1.7; color: #333;\"\u003eUL Listed; C-UL Listed; NYC MEA 325-06-E; City of Los Angeles Approved; AWWA C606; NFPA 1963; ANSI B1.20.1\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eFeatures \u0026amp; Benefits:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Condition Regulation:\u003c\/strong\u003e Maintains consistent pressure under both flow and no-flow conditions for reliable fire protection system performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Bronze Construction:\u003c\/strong\u003e Cast bronze body (ASTM B 584) ensures long-lasting durability in demanding fire protection environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField-Ready Design:\u003c\/strong\u003e Factory set with tapped and plugged inlet and outlet ports for easy pressure gauge installation and system monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Listings:\u003c\/strong\u003e UL and C-UL Listed with multiple jurisdictional approvals for broad compliance and installation flexibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the bonnet type U and other bonnet types?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The bonnet type U designation indicates a maximum inlet pressure rating of 200 psi. Other bonnet types (P, Q, R, S, T) accommodate higher inlet pressures ranging from 225 to 360 psi.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Wilkins ZW4000G-U regulate pressure under no-flow conditions?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, the Zurn ZW4000G-U is specifically designed to regulate pressure under both flow and no-flow conditions, ensuring consistent outlet pressure at all times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the grooved and threaded inlet models?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The ZW4000G-U features a grooved inlet connection compliant with AWWA C606 standards, while the ZW4000 model uses a female NPT threaded inlet connection per ANSI B1.20.1.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv id=\"W3TucRPBpqQA9ARvwg6ni-content\"\u003e\n\u003cp\u003e\u003cspan\u003e \u003cstrong\u003eNOTICE:\u003c\/strong\u003e Do not use with water that is unsafe or of unknown quality without adequate disinfection either before or after the system. \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003ci\u003e \"Hydrate Everyone, Everywhere!\" BottleFillingStations.com | \u003ca rel=\"noopener\" href=\"https:\/\/bottlefillingstations.com\/pages\/contact-us\" target=\"_blank\"\u003e Contact us \u003c\/a\u003e \u003c\/i\u003e\u003c\/p\u003e","brand":"Zurn Wilkins","offers":[{"title":"Default Title","offer_id":42983793819711,"sku":"ZW4000G-U","price":749.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/0985\/files\/ZW4000G_AL_04070c4f-a900-454c-b239-d5e9f3086092.png?v=1772854925","url":"https:\/\/bottlefillingstations.com\/products\/wilkins-zw4000g-u-2-12-pressure-reducing-standpipe-valve-fire-hose","provider":"BottleFillingStations.com","version":"1.0","type":"link"}